摘要
介绍了采用ICP-MS仪专用的有机进样分析系统建立直接进样标准加入法检测乙酸中痕量碘的方法,实验证明：此方法的检测限为0.17μg/L,相对标准偏差小于1.5%,回收率为90%~105%。该方法方便准确,可用于乙酸原辅料的验收检测手段,也可满足生产装置的控制检测需求。
A method for determination of trace iodine in acetic acid by direct injection standard addition method with organic sampling analysis system specially for inductively coupled plasma mass spectrometry （ICP-MS）was introduced.Experimental results showed that the detection limit of this method was 0.17 μg/L and the relative standard deviation was less than 1.5%,recovery rate of 90% to 105%.The method is convenient and accurate,and can be used in the inspection and acceptance of acetic acid raw materials,and also can meet the control and detection requirements of production plants.
作者
陈国强
Chen Guoqiang(Quality Management Center, SINOPEC Shanghai Petrochemical Co. , Ltd. , Shanghai 20054)
出处
《石油化工技术与经济》
2016年第5期33-36,共4页
Technology & Economics in Petrochemicals
关键词
乙酸
碘
电感耦合等离子体质谱法
acetic acid
iodine
inductively coupled plasma mass spectrometr y
